| abstract |
There is provided antifoam composition comprising an antifoaming-effective amount of at least one antifoam component, where antifoam component comprises product of the reaction of (a) at least one silicone fluid, (b) at least one silicone resin selected from the group consisting of silicone resin (i) having a ratio of M to Q units of from about 0,6/1 to about 0.8/1 and a different silicone resin (ii) having a ratio of M to Q units of from about 0.55/1 to about 0.75/1, optionally, (c) at least one inorganic particulate possessing reactive surface groups; and, optionally, (d) catalyst for the reaction of (a) and/or (b) with (c). |